billyking24 billyking24
  • 12-03-2021
  • Mathematics
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helppppp i don’t know how to solve this also please explain

helppppp i dont know how to solve this also please explain class=

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grecia07 grecia07
  • 12-03-2021
90° + 7x + 3x = 180°
10x = 90°
x = 9° (A)
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